Riot police have fired tear gas to subdue protesters in Rio and prevent them from marching towards Maracana Stadium ahead of the Olympic Games opening. Hundreds of people are rallying to express anger at the interim government and costly sports event.

Police have rescued two people from a hostage situation in New Jersey, right outside the Newark International Airport. The suspect is still inside the building, local media report.

Swat teams have surrounded the building at 451 Frelinghuysen Avenue. It is listed as an address of several manufacturing and shipping companies, and is about a block away from the Newark-Liberty International Airport transit station.

A major hub for United Airlines, Newark Liberty (EWR) is the second-busiest airport in the New York City area, serving 37.5 million passengers in 2015.

Even if rainfall has not been very impressive in recent months, the spectacle of the Hukou waterfall remains impressive. These falls, which are the second largest in China, are located on the Yellow River and straddle the border of the provinces Shanxi and Shaanxi. And this year, the Yellow River has become yellower due to large amounts of sediment.…